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Author : C. Martius,H. Tiessen,P. L. G. Vlek,Universität Bonn. Zentrum für Entwicklungsforschung
Publisher : Unknown
Page : 128 pages
File Size : 42,8 Mb
Release : 2001
Category : Electronic
ISBN : OCLC:59479982
Author : Christopher Martius,Holm Tiessen,Paul L.G. Vlek
Publisher : Springer Science & Business Media
Page : 260 pages
File Size : 43,9 Mb
Release : 2013-11-11
Category : Science
ISBN : 9789401721721
Soil organic matter is a reservoir for plant nutrients, provides water-holding capacity, stabilizes soil structure against compaction and erosion, and thus determines soil productivity. All agriculture to some degree depends on soil organic matter. It has long been known that soil organic matter declines when land is taken into cultivation, and that the productivity of new agricultural land is governed by fertility contributions from decomposing natural organic matter. The expansion of agriculture to ever new and more fragile lands, particularly in tropical and developing regions, causes environmental degradation with local effects on soil quality, regional effects on landscape integrity and water quality, and global effects on carbon cycles and the atmosphere. This book summarizes current knowledge of the properties and dynamics of soil organic matter in the tropics, its role in determining soil quality, its stability and turnover, and the options for management in the context of tropical landuse systems, for a readership of resource scientists, economists and advanced students. Maintenance of organic matter is critical for preventing land degradation. Case studies and practical applications are therefore an important part of the book, as are the exploration of future directions in research and management.
Author : Christopher Martius,Holm Tiessen,Paul Vlek
Publisher : Springer Science & Business Media
Page : 260 pages
File Size : 43,9 Mb
Release : 2002-01-31
Category : Science
ISBN : 1402004559
Soil organic matter is a reservoir for plant nutrients, provides water-holding capacity, stabilizes soil structure against compaction and erosion, and thus determines soil productivity. All agriculture to some degree depends on soil organic matter. It has long been known that soil organic matter declines when land is taken into cultivation, and that the productivity of new agricultural land is governed by fertility contributions from decomposing natural organic matter. The expansion of agriculture to ever new and more fragile lands, particularly in tropical and developing regions, causes environmental degradation with local effects on soil quality, regional effects on landscape integrity and water quality, and global effects on carbon cycles and the atmosphere. This book summarizes current knowledge of the properties and dynamics of soil organic matter in the tropics, its role in determining soil quality, its stability and turnover, and the options for management in the context of tropical landuse systems, for a readership of resource scientists, economists and advanced students. Maintenance of organic matter is critical for preventing land degradation. Case studies and practical applications are therefore an important part of the book, as are the exploration of future directions in research and management.
Author : Anthony S. R. Juo,Kathrin Franzluebbers
Publisher : Oxford University Press
Page : 292 pages
File Size : 46,6 Mb
Release : 2003-09-18
Category : Technology & Engineering
ISBN : 9780195353877
Agricultural ecology, or agroecology, deals in general with the structure and function of agroecosystems at different levels of resolution. In this text/reference, the authors describe in terms of agroecology the tropical environments of sub-Saharan Africa, Southeast Asia, and Latin and Central America, focusing on production and management systems unique to each region.
Author : Pedro A. Sanchez
Publisher : Cambridge University Press
Page : 685 pages
File Size : 49,5 Mb
Release : 2019-01-10
Category : Business & Economics
ISBN : 9781107176058
Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.
Author : David C. Coleman,J. M. Oades,Goro Uehara
Publisher : Unknown
Page : 288 pages
File Size : 45,6 Mb
Release : 1989
Category : Technology & Engineering
ISBN : UOM:39015016970074
Constituents of organic matter in temperate and tropical soils. Soil organic matter as a source and a sink of plant nUtrients. Interactions of soil organic matter and variable-charge clays. Biological processes regulating organic matter dynamics in tropical soils.
Author : Pedro A. Sanchez
Publisher : Unknown
Page : 648 pages
File Size : 55,7 Mb
Release : 1976
Category : Science
ISBN : UOM:39015007463238
The tropical environment. Soils of the tropics. Soil physical properties. Clay mineralogy and Ion Exchange Processes. Soil organic matter. Nitrogen. Soil acidity and liming. Phosphorus, silicon, and sulfur. Soil fertility evaluation. Soil management in shifting cultivation areas. Soil management in rice cultivation systems. Soil management in multiple cropping Systems. Soil Management for tropical pasture production.
Author : Jonathan Michael Anderson,J. S. I. Ingram
Publisher : Unknown
Page : 196 pages
File Size : 50,6 Mb
Release : 1989
Category : Science
ISBN : UOM:39015055711561
In this handbook methods are given to determine soil characteristics, organic matter compounds, phosphorus in soil, nitrogen fixation, soil solution sampling, plant nutrient uptake and the nitrogen availability
Author : Fred Magdoff,Ray R. Weil
Publisher : CRC Press
Page : 411 pages
File Size : 52,7 Mb
Release : 2004-05-27
Category : Technology & Engineering
ISBN : 9780203496374
Recognition of the importance of soil organic matter (SOM) in soil health and quality is a major part of fostering a holistic, preventive approach to agricultural management. Students in agronomy, horticulture, and soil science need a textbook that emphasizes strategies for using SOM management in the prevention of chemical, biological, and physical problems. Soil Organic Matter in Sustainable Agriculture gathers key scientific reviews concerning issues that are critical for successful SOM management. This textbook contains evaluations of the types of organic soil constituents—organisms, fresh residues, and well-decomposed substances. It explores the beneficial effects of organic matter on soil and the various practices that enhance SOM. Chapters include an examination of the results of crop management practices on soil organisms, organic matter gains and losses, the significance of various SOM fractions, and the contributions of fungi and earthworms to soil quality and crop growth. Emphasizing the prevention of imbalances that lead to soil and crop problems, the text also explores the development of soils suppressive to plant diseases and pests, and relates SOM management to the supply of nutrients to crops. This book provides the essential scientific background and poses the challenging questions that students need to better understand SOM and develop improved soil and crop management systems.
Author : Ram Swaroop Meena,Sandeep Kumar,Jitendra Singh Bohra,Mangi Lal Jat
Publisher : Springer Nature
Page : 406 pages
File Size : 42,5 Mb
Release : 2019-10-02
Category : Technology & Engineering
ISBN : 9789811388323
Fertilizers have been used extensively around the globe since the Green Revolution, due to the high subsidies. However, extensive fertilizer use exacerbates soil degradation and causes yield stagnation, and as a result threatens food security and soil sustainability, especially in developing countries. This means that sustainable soil and environmental management are vital to provide food and nutritional security for present and future generations. This has led to the International Union of Soil Science (IUSS) declaring 2015-2024 the International Decade of Soils. This book focuses on the impact of sustainable management of soil and environment on improving the functioning of soil-ecosystems and agronomic productivity, and also discusses food security, nutrient cycling, recent advances in INM technologies, eco-friendly cultivation, agricultural practices to reduce greenhouse gas (GHG) emissions, as well as conservation agriculture and its effects, and strategies for soil sustainability. Offering a comprehensive overview of management in the context of the sustainability of soil and the agroecosystems that it supports, it demonstrates the options available and provides insights into restoring soil health and matching soil nutrient supply with crop demand to ensure nutritional security in an eco-friendly environment.
Author : Joann Whalen
Publisher : BoD – Books on Demand
Page : 322 pages
File Size : 51,5 Mb
Release : 2012-02-24
Category : Technology & Engineering
ISBN : 9789533079455
Soil Fertility Improvement and Integrated Nutrient Management: A Global Perspective presents 15 invited chapters written by leading soil fertility experts. The book is organized around three themes. The first theme is Soil Mapping and Soil Fertility Testing, describing spatial heterogeneity in soil nutrients within natural and managed ecosystems, as well as up-to-date soil testing methods and information on how soil fertility indicators respond to agricultural practices. The second theme, Organic and Inorganic Amendments for Soil Fertility Improvement, describes fertilizing materials that provide important amounts of essential nutrients for plants.The third theme, Integrated Nutrient Management Planning: Case Studies From Central Europe, South America, and Africa, highlights the principles of integrated nutrient management. Additionally, it gives case studies explaining how this approach has been implemented successfully across large geographic regions, and at local scales, to improve the productivity of staple crops and forages.
Author : Rattan Lal,B.A. Stewart
Publisher : CRC Press
Page : 576 pages
File Size : 42,9 Mb
Release : 2011-09-13
Category : Nature
ISBN : 9781439844502
Soil—The Basis of All Terrestrial Life Ancient civilizations and cultures—Mayan, Aztec, Mesopotamian, Indus, and Yangtze—were built on good soils, surviving only as long as soils had the capacity to support them. In the twenty-first century, productive soil is still the engine of economic development and essential to human well-being. The quality of our soil resources, however, is threatened by human-induced and natural perturbations. World Soil Resources and Food Security takes an in-depth look at the availability and status of soil resources in the context of the growing demands of an increasing world population and rising expectations of living standards. This timely reference presents current information on the soil resources available for food production. Presenting innovative strategies for soil and water management, it discusses how to maintain or improve the world’s soil resources in order to increase food production. With the majority of the world’s 1.02 billion food-insecure people concentrated in South Asia and sub-Saharan Africa, several chapters focus on soil resources in these regions. Contributions from renowned scientists deal with topics including: Global food situations World soil resources Soil resources of humid Asia and their acidification Soil resources of South Asia Properties and management of Vertisols Use of radioisotopic techniques in soil management The potential of rain-fed agriculture in the semiarid tropics The status of land degradation Nutrient balance in sub-Saharan Africa The book concludes by outlining the need for further research to generate credible data on soil resources and degradation. This volume is a useful resource for those interested in the state of the soils of the world in relation to food security and environmental quality.
Author : Steven A Banwart,Elke Noellemeyer,Eleanor Milne
Publisher : CABI
Page : 427 pages
File Size : 48,6 Mb
Release : 2014-12-03
Category : Technology & Engineering
ISBN : 9781780645322
This book brings together the essential evidence and policy opportunities regarding the global importance of soil carbon for sustaining Earth's life support system for humanity. Covering the science and policy background for this important natural resource, it describes land management options that improve soil carbon status and therefore increase the benefits that humans derive from the environment. Written by renowned global experts, it is the principal output from a SCOPE rapid assessment process project.
Author : George V Thomas
Publisher : Springer Nature
Page : 544 pages
File Size : 48,8 Mb
Release : 2024-06-13
Category : Electronic
ISBN : 9789819700929
Author : F. S. C. P. Kalpagé
Publisher : Unknown
Page : 332 pages
File Size : 42,5 Mb
Release : 1974
Category : Soils
ISBN : UOM:39015001932386
The tropical environment; Factors affecting soil formation; Processes of soil formation; Classification of tropical soils; Profile features and fertility characteristics of the great soil groups; Physical properties; Nutrient supply: macro and secondary nutrients; Nutrient supply: micronutrients; Soil organic matter and soil organisms; Soil use in the the tropics; Soils under shiftingm cultivation; Soils under intensive upland arable cropping; Flooded rece soils; Plantation soils; Tropical grassland soils; Fertilizers in tropical soil fertility.